Little by Little
Jinjae Lee
Software Designer
I design software that turns complexity into tools people can actually use. I focus on creating interactions that seamlessly bridge humans and technology, enabling users to achieve more with less. Based in London and Seoul.
Currently designing products at Pigment, with past experience leading design at QuotaLab, Flex, Hyundai Motors, early-stage startups, and design studios. My work spans AI, SaaS, HR, finance, and infotainment systems.
I use code as a creative tool to explore interaction, prototype ideas, and build websites. I believe the future of interfaces relies on how effectively they can interpret and mirror human behavior.
Works
Severance Payroll / Flex
Designed a severance payroll system for Flex Payroll 2.0, 10x faster than others, with automated calculations, a streamlined review process, and easy manual adjustments.
Corporate Meetings 2.0 / Quotabook
Redesigned meeting tools for consent, board, and shareholders' meetings with consistent UX, customizable templates, bulk editing, and integrated communication, enhancing workflows, usability, and engagement.
ccNC Infotainment OS / Hyundai
Defined the concept and overall UX for ccNC, Hyundai’s next-gen infotainment system, focusing on intuitive, scalable designs for features like integrated search, control panels, and vehicle settings.
Lab
Step Sequencer with Three.js
An interactive experiment where 3D shapes built with Three.js move in sync with tones and rhythms from a step sequencer built using Tone.js. Designed and developed with Cursor.
Tennis Ball Orchestra
Inspired by teamLab’s Light Ball Orchestra, this project lets users experience harmonious sounds created by colliding balls. Designed and developed with Cursor.
Climate Change Impact Filter / Google
An interactive ML experiment visualizing potential losses and survivals under rising temperatures. Contributed as design engineer alongside artist Sey Min and professor Jae Yeop Kim.
Hangul in Motion
An interactive exploration of Hangul’s visual beauty and dynamism, using animation libraries like p5.js, anime.js, and two.js to experiment with different motion styles.
Skills
Product Design
Interaction Design
Design System
Figma
Framer
Adobe Creative Suite
HTML
CSS
JavaScript
Prototyping
React
Arduino
Python
2025 Goals
Launch Personal Site
Finish AI Engineering Course
Create Framer Templates
Master Pigment
In Progress
Finish Meta FE Developer Course
In Progress
100+ day French on Duolingo
In Progress
Build a Workout Routine
Launch Side Project
Notes
When Kiosks Meet AI
In Seoul, cafes increasingly use kiosks instead of staff, a trend driven by rising labor costs and the digital fluency of younger generations. This shift has extended beyond cafes to convenience stores, restaurants, airports, and banks, steadily replacing human-facing roles.
At first, I welcomed the efficiency and anonymity. But constantly adapting to new kiosk interfaces has become tiring. A once-simple act, ordering and paying, now feels unnecessarily complicated.
After a year in London, I grew used to small talk and greetings. Strangely, I now find human interaction more comfortable than navigating machines.
The rise of kiosks is not slowing, but their interfaces can improve. Imagine kiosks powered by ChatGPT’s voice feature. You could simply speak your order and pay. It would bring back the ease of pre-kiosk days.
Ultimately, the challenge is how closely these systems can mimic real conversation. This may shape the future of human–AI interaction.
Aug 6, 2025
Writing without AI
It has been more than six months since I started using ChatGPT to help with my writing in English. Over time, I’ve noticed a growing hesitation whenever I try to write without it. Sometimes, I even delay writing if I don’t have an internet connection.
I’ve realized that relying on AI has made me lazier and more dependent when creating something new. While these tools help me explore ideas and find examples, they don’t always help me move forward in a meaningful way.
Jan 6, 2025